640490774

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{16183}}^1$

素因数の和:16460

約数の個数: 32

約数和(自身を含む): 1202535936

約数和(自身を除く): 562045162

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 257, 514, 1799, 2827, 3598, 5654, 16183, 19789, 32366, 39578, 113281, 178013, 226562, 356026, 1246091, 2492182, 4159031, 8318062, 29113217, 45749341, 58226434, 91498682, 320245387, 640490774]

約数ペア:

[(1, 640490774), (2, 320245387), (7, 91498682), (11, 58226434), (14, 45749341), (22, 29113217), (77, 8318062), (154, 4159031), (257, 2492182), (514, 1246091), (1799, 356026), (2827, 226562), (3598, 178013), (5654, 113281), (16183, 39578), (19789, 32366)]